Rosneft and CNPC have signed an amendment to the agreement, envisaging additional supplies through Kazakhstan and the prolongation of their five-year contract signed on June 21, 2013, until the end of 2023. Additional deliveries from January 1, 2017 until December 31, 2023 will amount to 70 million tonnes, while the total volume of supplies for the ten-year period, including 21 million tonnes delivered previously, will amount to 91 million tonnes.